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Fortis 526 Enviro is a water based, two pack, aliphatic polyurethane. It is non toxic, contains no harmful solvents and has no noxious odours. Fortis 526 Enviro polyurethane is highly suitable when a heavy duty, long wearing gloss, satin or matt finish coating is required for Concrete, Timber or Cork flooring. Highly scratch and chemical resistant with a medium solids content. Easy to apply, washes up in water and is environmentally friendly.Water Based Polyurethane


  • Easy application
  • Available in Gloss or Satin Finish
  • Indoor / Outdoor Undercover
  • No bleaching of timber
  • Excellent chemical resistance
  • Durable & scratch resistant
  • A finish very similar to solvent based polyurethane
  • Non yellowing, UV stable
  • No solvents, No odour
  • Excellent adhesion to Concrete & Timber
  • Higher coat build than any other water based finish





  • If applying to concrete that contains quartz aggregate, then use Fortis 520 Primer as the 1st coat.
  • When applying a satin finish, always use a gloss as your 1st coat. The satin should always be the final coat only.
  • Once mixed, pot life is approx 30 mins. Apply to substrate as soon as possible.
  • Being a 2 pack, it generates heat, so the longer it is in the pot, the quicker it goes off.

Frequently Asked Questions

  • Question - What is the minimum re-coat time for Fortis 526?
  • Answer - In general, as soon as it is walkable, however in colder weather conditions allow up to 12 hours between coats.
  • Question - After mixing, Fortis 526 it has turned a little bit like jelly?
  • Answer - Part A must be mixed 1st, then slowly pour part B into a vortex while still mixing part A.
  • Question - Can Fortis 526 be used over self leveling compounds?
  • Answer - Yes, however the leveling compound must contain at least 15% silica and the 1st coat must be Fortis 520.
  • Question - What is the mixing rate by weight
  • Answer - Approx 4.5:1 (Gloss) or 3.3:1 (Satin)


* The above information is to be used as a guide only and Con-Treat accepts no responsibility for any consequence resulting from the advice contained herein or verbally.



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